Improvement in ruling-pens



J. 0.. Moss.

Ruling-Pen.--

No. 200.328. Patented Feb. 12,1878.

wimmsns: nfgmom. v

ATTORNEY? UNITED STATES PATENT OFFICE.

JOHN C. MOSS, OF NEW YORK, N. Y., ASSIGNOR TO PHOTO-ENGRAVING- COMPANY,OF SAME PLACE.

IMPROVEMENT IN RULING-PENS.

Specification forming part of Letters Patent No. 200,328, dated February12, 1878; application filed September 10, 1877.

To all whom it may concern:

Be it known that I, JOHN OALWN Moss, of the city, county, and State ofNew York, have invented a new and Improved Ruling-Pen, of which thefollowing is a specification:

Figure 1 is a side elevation of my improved ruling-pen. Fig. 2 is afront elevation of the same.

Similar letters of reference indicate corresponding parts.

The object of my invention is to providea ruling-pen whereby thethickness of the ruled lines may be conveniently and accuratelyregulated.

My invention consists in combining a graduated index .with the pen, sothat the blades of the pen may at any time be quickly set to correspondwith the width of any line that it may be desirable to rule.

A A are the blades of an ordinary rulingpen, having the adjusting-*screw 1), which passes through one of the blades and screws into theother, in the usual way. To the head of the screw 1) a disk orfinger-wheel, B, is attached, which is of sufficient diameter to admitof turning the screw to adjust the penblades by the application of oneof the fingers of the hand in which the pen is held to the edge of thedisk. The edge of the disk or wheel should be milled, to insure a firmhold of the finger. The circumference of the disk -B is divided into anumber of equal parts,

which are indicated on its face by lines of different lengths and byfigures.

A pin, (1, projects from the blade adjoining the disk, and serves as afixed index for the disk B, so that when the disk is turned through acertain distance for the successive lines, it may be stopped with theappropriate mark or graduation opposite the pin d.

When it is required to produce a line of a given width, it is done bybringing the grad nation on the disk representing a line of that widthopposite the index-pin d and when it is required to duplicate a lineafter having changed the adjustment of the pen, the former adjustmentmay be had by bringing the appropriate graduation opposite the pin 01.

In making graduated line tinted surfaces the disk is turned through agreater or less distance for each line, as the work in hand may requlre.

The device may be modified by attaching a figured disk to the pen-blade,and allowing the adjusting screw of the pen to project through it, andattaching thereto, an index, which may be moved over the face of thedisk to adjust the distance between the blades.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent.-

The combination of the graduated disk with the screw, the jaws of thepen, and a pin or indicator, substantially as shown and described.

JOHN G. MOSS.

Witnesses:

O. SEDGWIOK, I ALEX. F. ROBERTS.

